Subacute combined degeneration of the spinal cord in vitamin B12 and copper deficiency

Description

A 67-year-old man with a medical history of pancreatoduodenectomy (Whipple procedure) in September 2015 due to a pancreatic cancer was admitted to our department of neurology 1 year later with a progressively disturbed gait. He reported weakness and numbness of both legs. Clinical examination revealed a spastic sensomotoric tetraparesis with ataxia and bladder dysfunction. MRI showed longitudinal myelopathy exactly limited to the posterior tracts (fasciculus gracilis and fasciculus cuneatus) indicating a metabolic origin (subacute combined degeneration of the spinal cord; figure 1A,B).

Figure 1

(A) Axial T2-weighted and (B) sagittal short T1 inversion recovery (STIR) MRI of the cervical spine showing longitudinal myelopathy exactly limited to the posterior tracts (fasciculus gracilis and fasciculus cuneatus, arrows). (C) Sagittal STIR MRI of the cervical spine 4 months later.

Consistently and according to the medical history of the Whipple procedure, a moderate vitamin B₁₂ deficiency...

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